Vertiv VR3157 48U 800mm x 1100mm Networking Rack Enclosure
Overview
The Vertiv VR3157 is a 48U, 800mm-wide by 1100mm-deep open-frame steel networking rack built for high-density server rooms, network closets, and data center deployments where structural integrity and airflow management are non-negotiable. At 2265mm tall with a 3000lb static load rating, this enclosure is engineered to handle fully populated blade chassis, patch panels, and switching infrastructure without flex or compromise. Pair it alongside your broader Vertiv infrastructure lineup for a consistent, vendor-matched equipment strategy across power, cooling, and enclosures.
The VR3157 ships with a single perforated front door and split rear doors — a configuration that matters in practice. The perforated front allows passive airflow into equipment intakes while the split rear simplifies cable management access and lets you open one side without disturbing the other. This is exactly the kind of detail that saves time during adds, moves, and changes in a live environment.
Key Features
- 48U Usable Height (2265mm): Forty-eight rack units gives you enough vertical space to stack a full complement of 1U switches, 2U servers, patch panels, and cable managers without immediately running out of room. For growing deployments, 48U is the sweet spot between physical footprint and future capacity — you're not forced into a second cabinet on day one.
- 3000lb Static / 2250lb Dynamic Load Rating: The static rating of 3000lbs (1360kg) means you can fully populate this rack with dense switching or server hardware without worrying about structural failure. The dynamic rating of 2250lbs (1022kg) is relevant during transport or seismic events — critical for facilities in earthquake-prone regions or environments where racks are repositioned under load.
- 800mm Width: The 800mm-wide frame accommodates wider equipment — blade chassis, cable management arms, and side-mounted PDUs all fit without forcing you into cable routing compromises. Standard 600mm racks force external PDUs or awkward arm routing; the 800mm form factor is the right choice when your hardware or cabling demands it.
- 1100mm Depth: At 1100mm deep, the VR3157 comfortably handles extended 1U and 2U servers with rear-facing ports and cable connections intact. Deep chassis that overhang in shallower racks sit fully within the enclosure here, keeping the back of the rack organized and accessible.
- Single Perforated Front Door + Split Rear Doors: Perforated steel on the front door promotes natural front-to-back airflow through equipment intakes, reducing hot spots in high-density configurations. Split rear doors let technicians access the left or right side of the rear independently — useful in constrained aisle widths where fully swinging a single large rear panel isn't practical.
- Steel Construction, Powder-Coated Finish: Commercial-grade steel framing with a powder-coated finish resists corrosion and surface wear under normal data center conditions. This isn't a light-duty rack — the structural design supports the load ratings above without relying on installed equipment to brace the frame.
- EIA 310E, UL2416, RoHS, and REACH Certified: EIA 310E ensures standard 19-inch rail compatibility — any 19-inch rackmount hardware installs without adapter kits. UL2416 certification is required in many commercial and enterprise facilities and satisfies most building code and insurance requirements. RoHS and REACH compliance makes this rack suitable for deployments in EU-regulated environments and for organizations with environmental procurement mandates.
Integration & Compatibility
The EIA 310E-certified rail spacing on the VR3157 means any standard 19-inch rackmount equipment installs cleanly — servers, switches, patch panels, KVM drawers, cable managers, and power distribution units all mount without adapters. If you're building out a structured cabling environment, browse the full range of structured cabling accessories to complete your rack build. For power distribution inside the enclosure, vertical PDUs and horizontal rackmount PDUs in the Vertiv Geist line mount directly to the 800mm frame using standard rear-rail or side-channel mounting. Rackmount network switches with cable management arms fit within the 1100mm depth with room for organized rear cabling.
Facilities teams should note that the 2265mm overall height exceeds standard 7-foot ceiling clearance — confirm overhead clearance and door frame dimensions before placement. The 800mm width also requires wider aisle planning compared to 600mm installations; verify your raised floor tile layout or concrete anchor points are rated for the loaded footprint. For full rack planning and capacity guidance, see the rack selection and planning guide.
Frequently Asked Questions
Q: What is the usable rack unit capacity of the VR3157?
A: The VR3157 provides 48U of usable rack space, with an overall enclosure height of 2265mm.
Q: What load can the VR3157 support?
A: The VR3157 is rated for a 3000lb (1360kg) static load and a 2250lb (1022kg) dynamic load. The static rating applies to stationary fully populated installations; the dynamic rating covers transport or seismic scenarios.
Q: What certifications does the VR3157 carry?
A: The VR3157 is certified to EIA 310E (standard 19-inch rail compatibility), UL2416 (required by many commercial facilities), RoHS, and REACH (EU environmental compliance).
Q: What door configuration does the VR3157 use?
A: It ships with a single perforated front door for front-to-back airflow and split rear doors that allow independent left/right rear access — practical for constrained aisle environments.
Q: Will standard 19-inch rack equipment mount in the VR3157?
A: Yes. The EIA 310E-certified rail spacing ensures compatibility with all standard 19-inch rackmount hardware — no adapter kits required.
Q: Is the VR3157 appropriate for seismic zones?
A: The 2250lb (1022kg) dynamic load rating indicates the frame is designed to handle mechanical stress during movement or seismic events, making it suitable for facilities with seismic design requirements. Consult local building codes and verify anchoring requirements with your facilities team.
The VR3157 is one of those racks that doesn't cut corners on the specs that actually matter in production environments. The 3000lb static load rating gives you real headroom for dense builds — I've specified this enclosure for fully populated 48U blade and switching deployments where a lighter-duty frame would have introduced flex and rail alignment issues over time. The 800mm x 1100mm footprint is the right call when you're running extended-depth servers with cable management arms, and the perforated front door earns its keep in any configuration where airflow through equipment intakes is doing real work.
Technical Highlights:
- 3000lb Static Load Capacity: At 1360kg rated static, this rack handles fully populated high-density configurations — blade chassis, ToR switching, patch infrastructure — without structural compromise. The 2250lb dynamic rating is equally important for installations in facilities that require seismic compliance or where racks are repositioned under partial load.
- EIA 310E Rail Compatibility: Certified 19-inch rail spacing means zero compatibility surprises. Any standard rackmount hardware drops in without shimming, adapters, or rail modifications — a basic requirement that some cheaper enclosures still get wrong.
- UL2416 Certification: Required by insurance carriers and AHJs in a majority of commercial facilities. If you're building a new server room or expanding into a co-lo cage, UL2416 will likely come up in your facilities checklist — the VR3157 already has it.
Deployment Considerations:
- At 2265mm overall height, the VR3157 exceeds standard 84-inch (2134mm) door clearance — confirm your loading dock, elevator, and final installation room can accommodate this before delivery.
- The 800mm width requires wider floor cutouts on raised-floor installations compared to 600mm racks; verify your floor tile grid layout before committing to a footprint, especially in existing data centers with fixed PDU or cable tray runs.
The VR3157 is the right call for enterprise server rooms and network operations centers where the rack itself needs to be a non-issue for the life of the installation — specifically where blade density, extended-depth hardware, and code-mandated certifications are all requirements on the same project.
